CN209004163U - A kind of double set Kirschner wires of children - Google Patents

Abstract

The utility model discloses a kind of double set Kirschner wires of children, it includes outer tube that this pair, which covers Kirschner wire, puncture core and threaded rod, outer tube includes expansion-head and tube body, puncturing core includes handle, needle body and syringe needle, first cross section of expansion-head matches with the second cross section of handle, core is punctured to inject in outer tube, outer tube and puncture core cooperating, handle tail is connect with electric drill, electric drill drives puncture core and outer tube to be rotated, threaded rod includes convex block and the body of rod, one end on the body of rod far from convex block is equipped with screw thread, threaded rod injects in outer tube, threaded one end is equipped with nut on the body of rod；This pair covers Kirschner wire when carrying out children's fracture fixation, there is no gap between threaded rod and outer tube and bone, threaded rod and outer tube will not slide in bone, fixed effect is very good, after equal bones are grown well, it is also very convenient when threaded rod and outer tube are taken out from bone, and adverse effect not will cause to children's skeleton development.

Description

A kind of double set Kirschner wires of children

Technical field

The utility model relates to technical field of surgical instruments, the double set Kirschner wires of specifically a kind of children.

Background technique

Children fracture trauma with adult be it is distinguishing, the bone of children is in continuous growth and development, physiological function and life Object mechanical property is all constantly changing, and because sclerotin is porous, periosteum is loose etc., when fracture is less susceptible to be broken completely moves children's bone Position, most children's fracture does not all need to perform the operation, but betides juxtra-articular, when especially injuring growth plate, often needs hand Art resets, and children need to grow up, and children are unsuitable for using Interal fixation when fracturing, and steel plate can damage children's bone, make bone in children Hair is educated impacted.

It is used at present to be that diameter is that children's bone is fixed in 2-3 ㎜, Kirschner wire of the one end with needle point, in use, Kirschner wire is got into the other end from one end of bone, bone both ends are all exposed a bit of Kirschner wire, a bit of kirschner of exposing Needle bending is locked, due to not being the outer surface bending by bone when bending, so dogleg section and bone Between have the gap of 2-3 ㎜ so that Kirschner wire is easy sliding in bone, fixed effect is bad, waits bones to grow, also needs The part of bending to being straightened, Kirschner wire can just be taken out from bone, it is very troublesome.

Utility model content

The purpose of this utility model is to provide a kind of double set Kirschner wires of children, to solve the problems of the prior art.

To achieve the above object, the utility model provides the following technical solutions:

A kind of double set Kirschner wires of children, double set Kirschner wires include outer tube, puncture core and threaded rod, and outer tube includes pipe Body, tube body one end are equipped with expansion-head, and tube body and expansion-head are hollow structure, and the first cross section of expansion-head is regular polygon, Puncturing core includes needle body, and needle body one end is equipped with handle, the other end is equipped with syringe needle, and needle body, handle and syringe needle are solid construction, hand Second cross section of handle is regular polygon, punctures core and injects in outer tube, the first cross section matches with the second cross section, housing Pipe is connect with core cooperating, handle tail is punctured with electric drill, and electric drill drives puncture core to be rotated, and is punctured core ribbon and is moved outer tube It is rotated, threaded rod includes the body of rod, and body of rod one end is equipped with convex block, and the body of rod and convex block are solid construction, far from convex on the body of rod One end of block is equipped with screw thread, and threaded rod injects in outer tube, and outer tube and shaft work, threaded one end on the body of rod Equipped with nut.

As optimization, tube body is cylindrical body, and needle body is cylindrical body, and syringe needle is cone, and the diameter of needle body is less than tube body Internal diameter, needle body inject in tube body, and the length of tube body and the length of needle body are identical, and the volume of convex block is less than the cavity body of expansion-head Product, convex block and expansion-head cooperating, the body of rod are cylindrical body, and the diameter of the body of rod is less than the internal diameter of tube body, and the body of rod injects in tube body, The length of the body of rod is greater than the length of tube body.

As optimization, the first cross section and the second cross section are regular pentagon, regular hexagon or regular heptagon.

Compared with prior art, the utility model has the beneficial effects that a kind of double set Kirschner wires of children of the utility model, It when carrying out children's fracture fixation, will puncture in core insertion outer tube, the first cross section and the puncture core of the expansion-head of outer tube Second cross section of handle matches, and punctures core and outer tube cooperating, and handle tail is connect with electric drill, and electric drill, which drives, to be punctured Core is rotated, and is punctured the dynamic outer tube of core ribbon and is rotated, punctures core and outer tube is drilled into bone under the drive of electric drill, Expose handle and expansion-head in one end of bone, the other end of bone exposes tube body, needle body and syringe needle, then will puncture core from outer It is taken out in casing, then threaded rod is inserted into outer tube, cut the extra body of rod, the length of the body of rod is greater than the length of tube body, Nut is spun on threaded rod and is locked, threaded rod is fixed bone with outer tube cooperating, the utility model So that not having gap between threaded rod and outer tube and bone, threaded rod and outer tube will not slide in bone for design, fixed Effect is very good, wait bones grow it is good after, nut is spun down from threaded rod, takes out threaded rod from outer tube, then from bone Outer tube is taken out in head, the utility model is very easy to use, and not will cause to children's skeleton development bad It influences.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of the double set Kirschner wire outer tubes of children of the utility model；

Fig. 2 is a kind of structural schematic diagram of the double set kirschner pin puncture cores of children of the utility model；

Fig. 3 is a kind of structural schematic diagram of the double set Kirschner wire threaded rods of children of the utility model；

Fig. 4 is a kind of double set Kirschner wire outer tubes of children of the utility model, punctures the matched structural schematic diagram of core；

Fig. 5 is a kind of double set Kirschner wire outer tubes, the matched structural schematic diagram of threaded rod of children of the utility model；

Fig. 6 is a kind of double set Kirschner wire outer tubes of children of the utility model, threaded rod and the matched structural schematic diagram of nut.

In figure: 1- outer tube, 11- tube body, 12- expansion-head, the first cross section 13-, 2- puncture core, 21- needle body, 22- hand Handle, 23- syringe needle, the second cross section 24-, 3- threaded rod, the 31- body of rod, 32- convex block, 33- screw thread, 4- nut.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Please refer to Fig. 1~6, in the utility model embodiment, a kind of double set Kirschner wires of children, double set Kirschner wires include housing Pipe 1 punctures core 2 and threaded rod 3, and outer tube 1 includes tube body 11, and 11 one end of tube body is equipped with expansion-head 12, tube body 11 and expansion-head 12 be hollow structure, and the first cross section 13 of expansion-head 12 is regular polygon, and puncturing core 2 includes needle body 21,21 one end of needle body It is equipped with syringe needle 23 equipped with handle 22, the other end, needle body 21, handle 22 and syringe needle 23 are solid construction, and the second of handle 22 is horizontal Section 24 is regular polygon, punctures core 2 and injects in outer tube 1, the first cross section 13 matches with the second cross section 24, outer tube 1 connect with puncture 2 cooperating of core, 21 tail portion of handle with electric drill, and electric drill drives puncture core 2 to be rotated, and puncture core 2 drives outer Casing 1 is rotated, and threaded rod 3 includes the body of rod 31, and 31 one end of the body of rod is equipped with convex block 32, and the body of rod 31 and convex block 32 are solid knot Structure, one end on the body of rod 31 far from convex block 32 are equipped with screw thread 33, and threaded rod 3 injects in outer tube 1, and outer tube 1 is matched with threaded rod 3 Work is closed, threaded 33 one end is equipped with nut 4 on the body of rod 31.

Tube body 11 is cylindrical body, and needle body 21 is cylindrical body, and syringe needle 23 is cone, and the diameter of needle body 21 is less than tube body 11 Internal diameter, needle body 21 inject in tube body 11, and the length of tube body 11 is identical as the length of needle body 21, and the volume of convex block 32 is less than expansion-head 11 cavity volume, convex block 32 and 11 cooperating of expansion-head, the body of rod 31 are cylindrical body, and the diameter of the body of rod 31 is less than tube body 11 Internal diameter, the body of rod 31 inject in tube body 11, and the length of the body of rod 31 is greater than the length of tube body 11.

First cross section 13 and the second cross section 24 are regular pentagon, regular hexagon or regular heptagon.

A kind of double set Kirschner wires of children of the utility model will puncture core 2 and be inserted into outer tube when carrying out children's fracture fixation In 1, the first cross section 13 of the expansion-head 12 of outer tube 1 matches with the second cross section 24 of the handle 22 for puncturing core 2, punctures Core 2 and 1 cooperating of outer tube, 22 tail portion of handle are connect with electric drill, and electric drill drives puncture core 2 to be rotated, and are punctured core 2 and are driven Outer tube 1 is rotated, and punctures core 2 and outer tube 1 is drilled into bone under the drive of electric drill, exposes hand in one end of bone The other end of handle 22 and expansion-head 12, bone exposes tube body 11, needle body 21 and syringe needle 23, then will puncture core 2 from outer tube 1 It takes out, then threaded rod 3 is inserted into outer tube 1, cut the extra body of rod 31, the length of the body of rod 31 is greater than the length of tube body 11 Degree, nut 4 is spun on threaded rod 3 and is locked, and threaded rod 3 is fixed bone with 1 cooperating of outer tube, this is practical So that not having gap between threaded rod 3 and outer tube 1 and bone, threaded rod 2 and outer tube 1 in bone will not for novel design Sliding, fixed effect is very good, after waiting bones to grow well, nut 4 is spun down from threaded rod 3, takes out spiral shell from outer tube 1 Rasp bar 3, then outer tube 1 is taken out from bone, the utility model is very easy to use, and to children's skeleton development It not will cause adverse effect.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

Claims (3)

1. a kind of double set Kirschner wires of children, it is characterised in that: double set Kirschner wires include outer tube (1), puncture core (2) and spiral shell Rasp bar (3), the outer tube (1) include tube body (11), and described tube body (11) one end is equipped with expansion-head (12), the tube body (11) It is hollow structure with expansion-head (12), the first cross section (13) of the expansion-head (12) is regular polygon, the puncture core It (2) include needle body (21), described needle body (21) one end is equipped with handle (22), the other end is equipped with syringe needle (23), the needle body (21), Handle (22) and syringe needle (23) are solid construction, and the second cross section (24) of the handle (22) is regular polygon, described to wear It pierces core (2) to inject in outer tube (1), first cross section (13) matches with the second cross section (24), the outer tube (1) With puncture core (2) cooperating, handle (22) tail portion is connect with electric drill, and the electric drill drives puncture core (2) to be rotated, The puncture core (2) drives outer tube (1) to be rotated, and the threaded rod (3) includes the body of rod (31), the described body of rod (31) one end Equipped with convex block (32), the body of rod (31) and convex block (32) they are solid construction, far from convex block (32) on the body of rod (31) One end is equipped with screw thread (33), and the threaded rod (3) is injected in outer tube (1), and the outer tube (1) and threaded rod (3) cooperate work Make, the one end of threaded (33) is equipped with nut (4) on the body of rod (31).

2. a kind of double set Kirschner wires of children according to claim 1, it is characterised in that: the tube body (11) is cylindrical body, The needle body (21) is cylindrical body, and the syringe needle (23) is cone, and the diameter of the needle body (21) is less than the interior of tube body (11) Diameter, the needle body (21) are injected in tube body (11), and the length of the tube body (11) is identical as the length of needle body (21), the convex block (32) volume is less than the cavity volume of expansion-head (12), the convex block (32) and expansion-head (12) cooperating, the body of rod It (31) is cylindrical body, the diameter of the body of rod (31) is less than the internal diameter of tube body (11), and the body of rod (31) is injected in tube body (11), The length of the body of rod (31) is greater than the length of tube body (11).

3. a kind of double set Kirschner wires of children according to claim 2, it is characterised in that: first cross section (13) and the Two cross sections (24) are regular pentagon, regular hexagon or regular heptagon.